<p>Akshay’s friend visited his house in Mumbai and he was surprised to see air conditioners installed in all of his rooms. His friend advised Akshay to use water-coolers and save electricity. On this Akshay told, him that the water-cooler is not at all effective in coastal areas.<br><b>(a)</b> Why are water-cooler not effective in coastal areas?<br><b>(b)</b> What are the other two factors on which evaporation of water depends?<br><b>(c)</b> What value of Akshay’s friend is seen in this act</p>